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# -*- coding: utf-8 -*-
# Description: tomcat netdata python.d module
# Author: Pawel Krupa (paulfantom)
import xml.etree.ElementTree as ET
from bases.FrameworkServices.UrlService import UrlService
# default module values (can be overridden per job in `config`)
# update_every = 2
priority = 60000
retries = 60
# charts order (can be overridden if you want less charts, or different order)
ORDER = ['accesses', 'bandwidth', 'processing_time', 'threads', 'jvm', 'jvm_eden', 'jvm_survivor', 'jvm_tenured']
CHARTS = {
'accesses': {
'options': [None, "Requests", "requests/s", "statistics", "tomcat.accesses", "area"],
'lines': [
["requestCount", 'accesses', 'incremental'],
["errorCount", 'errors', 'incremental'],
]},
'bandwidth': {
'options': [None, "Bandwidth", "KB/s", "statistics", "tomcat.bandwidth", "area"],
'lines': [
["bytesSent", 'sent', 'incremental', 1, 1024],
["bytesReceived", 'received', 'incremental', 1, 1024],
]},
'processing_time': {
'options': [None, "processing time", "seconds", "statistics", "tomcat.processing_time", "area"],
'lines': [
["processingTime", 'processing time', 'incremental', 1, 1000]
]},
'threads': {
'options': [None, "Threads", "current threads", "statistics", "tomcat.threads", "area"],
'lines': [
["currentThreadCount", 'current', "absolute"],
["currentThreadsBusy", 'busy', "absolute"]
]},
'jvm': {
'options': [None, "JVM Memory Pool Usage", "MB", "memory", "tomcat.jvm", "stacked"],
'lines': [
["free", 'free', "absolute", 1, 1048576],
["eden_used", 'eden', "absolute", 1, 1048576],
["survivor_used", 'survivor', "absolute", 1, 1048576],
["tenured_used", 'tenured', "absolute", 1, 1048576],
["code_cache_used", 'code cache', "absolute", 1, 1048576],
["compressed_used", 'compressed', "absolute", 1, 1048576],
["metaspace_used", 'metaspace', "absolute", 1, 1048576],
]},
'jvm_eden': {
'options': [None, "Eden Memory Usage", "MB", "memory", "tomcat.jvm_eden", "area"],
'lines': [
["eden_used", 'used', "absolute", 1, 1048576],
["eden_commited", 'commited', "absolute", 1, 1048576],
["eden_max", 'max', "absolute", 1, 1048576]
]},
'jvm_survivor': {
'options': [None, "Survivor Memory Usage", "MB", "memory", "tomcat.jvm_survivor", "area"],
'lines': [
["survivor_used", 'used', "absolute", 1, 1048576],
["survivor_commited", 'commited', "absolute", 1, 1048576],
["survivor_max", 'max', "absolute", 1, 1048576]
]},
'jvm_tenured': {
'options': [None, "Tenured Memory Usage", "MB", "memory", "tomcat.jvm_tenured", "area"],
'lines': [
["tenured_used", 'used', "absolute", 1, 1048576],
["tenured_commited", 'commited', "absolute", 1, 1048576],
["tenured_max", 'max', "absolute", 1, 1048576]
]},
}
class Service(UrlService):
def __init__(self, configuration=None, name=None):
UrlService.__init__(self, configuration=configuration, name=name)
self.url = self.configuration.get('url', "http://127.0.0.1:8080/manager/status?XML=true")
self.connector_name = self.configuration.get('connector_name', None)
self.order = ORDER
self.definitions = CHARTS
def _get_data(self):
"""
Format data received from http request
:return: dict
"""
data = None
raw_data = self._get_raw_data()
if raw_data:
try:
xml = ET.fromstring(raw_data)
except ET.ParseError:
self.debug('%s is not a vaild XML page. Please add "?XML=true" to tomcat status page.' % self.url)
return None
data = {}
jvm = xml.find('jvm')
connector = None
if self.connector_name:
for conn in xml.findall('connector'):
if self.connector_name in conn.get('name'):
connector = conn
break
else:
connector = xml.find('connector')
memory = jvm.find('memory')
data['free'] = memory.get('free')
data['total'] = memory.get('total')
for pool in jvm.findall('memorypool'):
name = pool.get('name')
if 'Eden Space' in name:
data['eden_used'] = pool.get('usageUsed')
data['eden_commited'] = pool.get('usageCommitted')
data['eden_max'] = pool.get('usageMax')
elif 'Survivor Space' in name:
data['survivor_used'] = pool.get('usageUsed')
data['survivor_commited'] = pool.get('usageCommitted')
data['survivor_max'] = pool.get('usageMax')
elif 'Tenured Gen' in name or 'Old Gen' in name:
data['tenured_used'] = pool.get('usageUsed')
data['tenured_commited'] = pool.get('usageCommitted')
data['tenured_max'] = pool.get('usageMax')
elif name == 'Code Cache':
data['code_cache_used'] = pool.get('usageUsed')
data['code_cache_commited'] = pool.get('usageCommitted')
data['code_cache_max'] = pool.get('usageMax')
elif name == 'Compressed':
data['compressed_used'] = pool.get('usageUsed')
data['compressed_commited'] = pool.get('usageCommitted')
data['compressed_max'] = pool.get('usageMax')
elif name == 'Metaspace':
data['metaspace_used'] = pool.get('usageUsed')
data['metaspace_commited'] = pool.get('usageCommitted')
data['metaspace_max'] = pool.get('usageMax')
if connector:
thread_info = connector.find('threadInfo')
data['currentThreadsBusy'] = thread_info.get('currentThreadsBusy')
data['currentThreadCount'] = thread_info.get('currentThreadCount')
request_info = connector.find('requestInfo')
data['processingTime'] = request_info.get('processingTime')
data['requestCount'] = request_info.get('requestCount')
data['errorCount'] = request_info.get('errorCount')
data['bytesReceived'] = request_info.get('bytesReceived')
data['bytesSent'] = request_info.get('bytesSent')
return data or None
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